LCM of 916, 928, 638, 561
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 916, 928, 638, 561 with the LCM of Two or More Numbers Calculator. Here we are teaching you two different methods through which you can calculate the LCM of 916, 928, 638, 561. So, keep reading to learn more.
Given numbers are 916,928,638,561
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 916,928,638,561 is 119219232.
Find LCM of 916,928,638,561 with Prime Factorization
| 2 | 916, 928, 638, 561 |
| 2 | 458, 464, 319, 561 |
| 11 | 229, 232, 319, 561 |
| 29 | 229, 232, 29, 51 |
| 229, 8, 1, 51 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 11 x 29 x 229 x 8 x 1 x 51 = 119219232
Therefore, the lowest common multiple of 916,928,638,561 is 119219232.
LCM formula is LCM(a1, a2, an) = (a1 x a2 x an)/{GCF(a1 x a2 x an) x common factors}
Firstly, we have to find the product of all the numbers.
916 x 928 x 638 x 561 = 304247480064
Then, let us find the GCF of these five numbers. To do so, we have to list down the factors for each number and choose the highest factor that is in all of the lists.
916 : 1, 2, 4, 229, 458, 916
928 : 1, 2, 4, 8, 16, 29, 32, 58, 116, 232, 464, 928
638 : 1, 2, 11, 22, 29, 58, 319, 638
561 : 1, 3, 11, 17, 33, 51, 187, 561
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 916,928,638,561, is 1.
Now, the common factors can be found like this.
916:2x 2x 229
928:2x 2x 2x 2x 2x 29
638:2x 11x 29
561:3x 11x 17
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 2x 2x 11x 29 = 2552
Therefore, the value for common factors is 2552.
Now that we have all the elements of the formula, we can plug them in to calculate the LCM.
LCM(a1, a2, an) = (a1 x a2 x an)/{GCF(a1 x a2 x an) x common factors}
LCM = 304247480064/(1x2552)
LCM = 304247480064/2552
LCM = 119219232
Thus, we can understand that the LCM of 916,928,638,561 is 119219232.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 916, 928, 638, 561
1. What is the LCM of 916, 928, 638, 561?
Answer: LCM of 916, 928, 638, 561 is 119219232.
2. How to calculate the LCM of 916, 928, 638, 561?
The LCM can be found using two methods. You can either use the LCM formula or the prime factorization method to calculate the LCM of 916, 928, 638, 561.
3. What is the LCM formula?
The LCM formula is LCM(a1, a2, an) = (a1 x a2 x an)/{GCF(a1 x a2 x an) x common factors}.